Here, you can see that I've just replaced the front cooling fans with a different brand than in the earlier photos.

I'd originally gotten some cheap 120mm fans at Fry's Electronics. My idea was that 120mm fans, when wired at 5 volts instead of 12 volts, would still move a lot of air yet be very quiet. While this is true, it's all moot when you buy really cheap crappy fans which are noisy even at 5 volts.

So I did some research and ordered up some SilenX Fans, which were orders of magnitude quieter than the cheapies from Fry's. Ah, much better. If you happen to need quiet 120mm fans, definitely look up the SilenX ones, they are worth it.